Fantasy world -- 2

I'm looking for someone to help bring my fantasy world to life! The setting I'm looking to create is one of medieval times, and I would like the world to focus on a specific culture. As far as laws and customs, I'm confident that I can create them myself. Therefore, I am really looking for someone who can create characters and give my world the atmosphere it needs to become a fully realized fantasy world. If you feel you are up to the task, please let me know!